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Full Discussion: ndd -set /dev/tcp tcp_host_param
Operating Systems Solaris ndd -set /dev/tcp tcp_host_param Post 302401505 by RTM on Saturday 6th of March 2010 01:56:30 PM
Old 03-06-2010
Unfortunately, I can't put freeware on the server.

Output from iostat, vmstat, top during a scp transfer (all of these from the new server). You have to remember, if I try a scp transfer from another server in the same location (but not on the same subnet), the transfer rate shown in the scp is 4 to 5 times faster, so the server isn't having an issue when accepting a transfer. Also, showing netstat at the time of transfer shows the increased values are getting used.

netstat -an (cut down to just the scp process and my ssh to the server)
TCP: IPv4
Local Address Remote Address Swind Send-Q Rwind Recv-Q State
-------------------- -------------------- ----- ------ ----- ------ -----------
10.140.16.20.22 172.16.10.10.44764 280912 135 280912 0 ESTABLISHED
10.140.16.20.49395 172.16.10.10.22 280912 0 525624 0 ESTABLISHED

As you can see, the scp (first process shown) is at the rate set up with tcp_host_params. My ssh to the old server has the higher rate on Rwind of 525624.


iostat 5 200
tty ramdisk1 sd0 sd1 sd2 cpu
tin tout kps tps serv kps tps serv kps tps serv kps tps serv us sy wt id
0 2 0 0 0 1 0 4 0 0 0 262 48 47 0 0 0 100
0 143 0 0 0 0 0 0 0 0 0 7 1 5 0 0 0 100
0 111 0 0 0 0 0 0 0 0 0 8 2 6 0 0 0 100
0 111 0 0 0 0 0 0 0 0 0 2 0 8 0 0 0 100
0 143 0 0 0 0 0 0 0 0 0 20 11 36 0 0 0 100
0 111 0 0 0 0 0 0 0 0 0 19 4 5 0 0 0 99
0 111 0 0 0 0 0 0 0 0 0 24 6 6 0 0 0 100
0 111 0 0 0 0 0 0 0 0 0 42 10 4 0 0 0 100
0 111 0 0 0 0 0 0 0 0 0 3 1 6 0 0 0 100
3 111 0 0 0 0 0 0 0 0 0 263 57 5 0 0 0 100

vmstat 5 200
kthr memory page disk faults cpu
r b w swap free re mf pi po fr de sr rm s0 s1 s2 in sy cs us sy id
0 0 0 39429784 31169736 19 94 0 33 33 0 0 0 0 0 52 1665 3742 1331 0 0 100
0 0 0 39425768 31165392 30 128 0 13 13 0 0 0 0 0 8 1926 10266 1915 0 0 100
0 0 0 39425712 31165424 146 226 0 142 142 0 0 0 0 0 17 1633 5231 1350 0 0 100
0 0 0 39423680 31164952 40 262 0 241 241 0 0 0 0 0 37 1838 5427 1584 0 0 100
0 0 0 39421672 31163688 10 59 0 2 2 0 0 0 0 0 0 1541 2021 1164 0 0 100
0 0 0 39419568 31161488 59 289 0 17 17 0 0 0 0 0 12 1971 9501 2057 0 0 100
0 0 0 39417416 31159296 32 143 0 11 11 0 0 0 0 0 2 1498 3184 1147 0 0 100
0 0 0 39415360 31157216 9 59 0 0 0 0 0 0 0 0 0 1514 2051 1126 0 0 100
0 0 0 39413336 31155128 31 120 0 61 61 0 0 0 0 0 8 1658 10844 1217 0 0 99
snoop5.out | 110MB | 413kB/s | ETA: 00:31:16 | 12%


last pid: 6764; load avg: 0.26, 0.22, 0.19; up 0+23:33:41 18:28:48
80 processes: 79 sleeping, 1 on cpu
CPU states: 99.8% idle, 0.1% user, 0.1% kernel, 0.0% iowait, 0.0% swap
Kernel: 1583 ctxsw, 189 trap, 1727 intr, 4811 syscall, 59 flt, 8 pgout
Memory: 32G phys mem, 30G free mem, 12G total swap, 12G free swap

PID USERNAME LWP PRI NICE SIZE RES STATE TIME CPU COMMAND
5009 AutoMon 1 29 10 32M 30M sleep 104:53 0.05% PatrolAgent
6541 v821383 1 54 0 10M 7976K sleep 0:03 0.04% sshd
2583 root 1 158 -20 63M 61M sleep 29:29 0.03% seosd
6365 root 1 54 0 5128K 4136K sleep 0:02 0.01% vmstat
6550 v821383 1 59 0 3752K 2144K sleep 0:00 0.01% sftp-server
406 root 9 59 0 10M 9504K sleep 0:58 0.00% picld
6188 root 1 59 0 4296K 3480K cpu/104 0:01 0.00% top
 

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LEARN ABOUT MOJAVE

perlio::via::symlink

symlink(3)						User Contributed Perl Documentation						symlink(3)

NAME

       PerlIO::via::symlink - PerlIO layers for create symlinks

SYNOPSIS

	open $fh, '>:via(symlink)', $fname;
	print $fh "link foobar";
	close $fh;

DESCRIPTION

       The PerlIO layer "symlink" allows you to create a symbolic link by writing to the file handle.

       You need to write C"link $name" to the file handle. If the format does not match, "close" will fail with EINVAL.

TEST COVERAGE

	----------------------------------- ------ ------ ------ ------ ------ ------
	File				      stmt branch   cond    sub   time	total
	----------------------------------- ------ ------ ------ ------ ------ ------
	blib/lib/PerlIO/via/symlink.pm	     100.0  100.0    n/a  100.0  100.0	100.0
	Total				     100.0  100.0    n/a  100.0  100.0	100.0
	----------------------------------- ------ ------ ------ ------ ------ ------

AUTHORS

       Chia-liang Kao <clkao@clkao.org>

COPYRIGHT

       Copyright 2004-2005 by Chia-liang Kao <clkao@clkao.org>.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

       See <http://www.perl.com/perl/misc/Artistic.html>

perl v5.18.2							    2005-03-01								symlink(3)
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